/*
 * Copyright (c) 2014 Leo <leo@nullptr.com.cn>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */

#ifndef __GENERIC_STRING_H__
#define __GENERIC_STRING_H__

#include <string.h>

/* Weak symbol function strlcat */
int __attribute__((weak)) strlcat(char *outbuf, const char *inbuf, int size)
{
    strncat(outbuf, inbuf, size - strlen(outbuf) - 1);
    *(outbuf + size - 1) = '\0';
    return 0;
}

/* Weak symbol function strlcpy */
int __attribute__((weak)) strlcpy(char *outbuf, const char *inbuf, int size)
{
    strncpy(outbuf, inbuf, size - 1);
    *(outbuf + size - 1) = '\0';
    return 0;
}

/* Safe String manipulating functions */
inline char *strcat_s(char *outbuf, int size, const char *inbuf)
{
    if (inbuf)
    {
        strlcat(outbuf, inbuf, size);
    }
    return outbuf;
}

/* Safe string copy */
inline char *strcpy_s(char *outbuf, int size, const char *inbuf)
{
    if (inbuf)
    {
        strlcpy(outbuf, inbuf, size);
    }
    else
    {
        *outbuf = '\0';
    }
    return outbuf;
}

#endif /* __GENERIC_STRING_H__ */